Tips for cleaning dust inside electric vehicle chargers

When cleaning the dust inside an electric vehicle charger, special attention should be paid to operational safety and tool selection. The following are specific tips and steps:

Cleaning techniques and steps

Power-off and safety protection

Make sure the charger is completely powered off and disconnected from the power supply and the vehicle.

Wear rubber gloves and goggles to avoid static electricity or dust irritation.

Initial external cleaning

Use a soft-bristled brush or a vacuum cleaner (with a fine nozzle accessory) to clean the dust on the surface of the shell and the heat dissipation holes to prevent dust from entering the interior during disassembly.

Internal dust cleaning

Tool selection: Use a soft-bristled brush (such as a makeup brush) or a compressed air cancan (keep a distance of more than 10cm) to gently blow off the dust on the internal circuit boards, fans and interfaces.

Key points of operation:

Avoid direct contact with the circuit board to prevent static electricity from damaging components.

The compressed air tank should maintain a short and gentle airflow to prevent high-pressure airflow from damaging the precision components.

Deep cleaning

If there is a lot of dust, you can use a microfiber cloth dipped in a small amount of isopropyl alcohol (70% concentration) to gently wipe the heat sink and fan blades, but make sure the liquid does not seep into the circuit board.

Do not use cleaning agents with excessively high alcohol content (>75%) or corrosive agents.

Maintenance of heat dissipation components

Clean the accumulated dust between the fan blades and the heat dissipation fins to ensure the unobstructed heat dissipation channels.

Check if the fan is operating normally. If there is any abnormal noise or jamming, contact a professional for repair.

Interface and contact cleaning

Gently clean the dust inside the charging port with a dry cotton swab or a special cleaning brush, and avoid touching the metal contacts.

If necessary, a small amount of precision electrical appliance cleaner can be sprayed on a cotton swab to wipe the oxide layer on the contacts, but make sure the cleaner has completely evaporated before powering on.

Assembly and Testing

After the cleaning is completed, assemble the charger as it is and ensure that all components are installed in place.

Power on and test whether the charger functions properly, and observe if there is any abnormal heating or fault prompt.

Precautions

Do not disassemble: Non-professionals are not allowed to disassemble the interior of the charger to avoid damaging components or causing the warranty to expire.

Environmental requirements: Cleaning should be carried out in a dry and dust-free environment to prevent dust from re-entering during the cleaning process.

Regular maintenance: It is recommended to clean the internal dust once every quarter, especially in dusty or humid environments, the cleaning frequency should be increased.

Professional support: If the charger still fails to work properly after cleaning, or if there is too much dust inside that is difficult to clean, please contact a professional maintenance personnel for handling.